/*******************************************************************************

 * Copyright (c) 2000, 2007 QNX Software Systems and others.

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *     QNX Software Systems - Initial API and implementation

 *     Ed Swartz (Nokia)

 *******************************************************************************/

package org.eclipse.cdt.internal.core.model;

import org.eclipse.cdt.core.model.IMacroFileEntry;

import org.eclipse.cdt.core.model.IPathEntry;

import org.eclipse.cdt.utils.PathUtil;

import org.eclipse.core.resources.IResource;

import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.Path;

public class MacroFileEntry extends APathEntry implements IMacroFileEntry {

	IPath macroFilePath;

	public MacroFileEntry(IPath resourcePath, IPath basePath, IPath baseRef, IPath macroFilePath,

			IPath[] exclusionPatterns, boolean isExported) {

		super(IPathEntry.CDT_MACRO_FILE, basePath, baseRef, resourcePath, exclusionPatterns, isExported);

		this.macroFilePath = (macroFilePath == null) ? Path.EMPTY : PathUtil.getCanonicalPath(macroFilePath);

	}

	/**

	 * Returns the macro file path

	 * 

	 * @return IPath

	 */

	public IPath getMacroFilePath() {

		return macroFilePath;

	}

	@Override

	public boolean equals(Object obj) {

		if (obj instanceof IMacroFileEntry) {

			IMacroFileEntry otherEntry = (IMacroFileEntry) obj;

			if (!super.equals(otherEntry)) {

				return false;

			}

			if (path == null) {

				if (otherEntry.getPath() != null) {

					return false;

				}

			} else {

				if (!path.toString().equals(otherEntry.getPath().toString())) {

					return false;

				}

			}

			if (macroFilePath == null) {

				if (otherEntry.getMacroFilePath() != null) {

					return false;

				}

			} else {

				if (!macroFilePath.toString().equals(otherEntry.getMacroFilePath().toString())) {

					return false;

				}

			}

			return true;

		}

		return super.equals(obj);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.cdt.core.model.IIncludeEntry#getFullIncludePath()

	 */

	public IPath getFullMacroFilePath() {

		IPath p;

		IPath inc = getMacroFilePath();

		if (!basePath.isEmpty()) {

			IPath loc = basePath;

			if (!loc.isAbsolute()) {

				IResource res = ResourcesPlugin.getWorkspace().getRoot().findMember(loc);

				if (res != null) {

					loc = res.getLocation();

				}

			}

			p = loc.append(inc);

			return p;

		}

		p = inc;

		if (!p.isAbsolute()) {

			IPath resPath = getPath();

			IResource res = ResourcesPlugin.getWorkspace().getRoot().findMember(resPath);

			if (res != null) {

				if (res.getType() == IResource.FILE) {

					res = res.getParent();

				}

				IPath location = res.getLocation();

				if (location != null) {

					p = location.append(p);

				}

			}

		}

		return p;

	}

	/* (non-Javadoc)

	 * @see java.lang.Object#toString()

	 */

	@Override

	public String toString() {

		StringBuffer sb = new StringBuffer();

		sb.append(super.toString());

		if (macroFilePath != null && !macroFilePath.isEmpty()) {

			sb.append(" macroFilePath:").append(macroFilePath); //$NON-NLS-1$

		}

		return sb.toString();

	}

}